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Mathematics
Keira
6 July, 08:01
Least common multiple of 7 and 21
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Neil Petty
6 July, 11:38
0
21
Step-by-step explanation:
Since 7 x 3 is 21
And 21 x 1 is 21
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King Mayer
6 July, 11:57
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21
Step-by-step explanation:
To find the least common multiple of 7 and 21, we need to break each number down to its prime factors
7 = 7
21 = 7*3
To find the least common multiple multiply each factor the greatest number of times it occurs in either number.
The LCM = 7*3
= 21
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